Shock absorber



Peb., 19, :wv

mwa;

J. NHGHL ET All.

l SHOCK ABSOHBER Filed Jun@ 2@ 192:2

Patented Feb.. 19,

UNITELUt c. inrit-ittica aun :un

. A Application tiled lune 2e, 195352,.

To all whom it may concern:

Be it known that we, learns (l. hl'rorrons and Emma ltrnnn, both citizens of the United States, residing at Chicago, in the county of Cook and State ot illinois.. have invented new and usetul linprovenients in Shock Absorbers, oit which the following is a specification.

This invention relates to shoclr absorbers for automobiles and other motor vehicles.

The invention has reference to the type ot shock absorber disclosed in our prior Pat ent No. 1,334,390, granted March 23, 1929, and is an improvement thereon.

One object of our present invention is to provide a shoe or other means at the end of the strap engaging the triction band on the stationary drum to enlarge the extent of contact ot such parts so that the pnrchase of the strap on the band will be increased and thus enhance the ainonnt of Yl'ricticn produced between the parts on becorninga en- `staged.

A further object ot our invention is to gain, by reason of said shoe or equivalent means, an increased leverage between the parts when engaged, and thus enable a device ot one size to be used on ears ot various weights.

The invention consists further in the matM ters hereinafter described and more par ticularly set forth in the appended clairns.

In the accompanying drawings- Iiig. l is a front view oit a shoclr absorber embodying' the tentures ot our 1nvention and shown applied to the spring; supported traine and aide ot an automobile or other motor vehicle;

Fig. 2 is a vertical sectional view talren on line 2 2 of Fig. l.;

Fig. 3 is an enlarged vertical sectional. view taken on line 3 3 of 2, the shoe beingI shown in two positions;

Fig. l is a view ot the non-rotatable drum and friction band thereon;

Fig. 5 is a view ot the drum supportingv plate; and

6 is a perspective view of the shoe.

In the drawings, 1 indicates one oit the `side members oi a vehicle trarne and 2 an axle below the saine. The member l is supported above the anle E?, by a vehicle snoringr (not shown) as usual in. automobile construction.

The shoot: absorber constructed in accordance with our invention comprises a Clit mit Qlilllmllttt, lliliilt'illiltwiit.

non-rotatable dri-un 3 secured to the traine l; a strap 4l: partially looped about the drinn and clamped at its outer ond to the arde 2; a shoe 5 connected with the otlrer end of the strap; a coiled springt o connected. at its upper end with said shoe and at its lOWer end with a ineinber 7 secured to the traine l `at said drum and extending outward therefrom; and a tric-tion band 8 surrounding` the drnrn between the same and the strap l.

its shown in 6, the shoe 5 has conive part 9 and ears l0, l0. rlhese are spaced apart and extend outwardtroin the part 9. The upper end ot the spring 6 errtends between those ears and is engaged with a pivot pin 1 1 extending between them. The strap t covers the eonraved part 9 and is secured thereto by rivets l2.

he pivotal. connection between the shoe 5 and the spring`- 6 is about mid-way between the ends ot the concaved part 9 so that a portion ot the strap l is onopposite sides of that connection. This enlargljes the eX- tent ot contact between the strap if `and the `friction band 8 when the two Vare engaged, thus increasing the purchase ot the strap Alf on the drinn 3, with the result that the power ot the device to absorb shocks is `enbanced.

llndcr normal conditions, the shoe 5 occupies the position shown in dotted lines in Fig. and at that time is out ot contact with the 'friction band 8. `llllren a shockv is received, the parts l and E2 ot the vehicle separate on the rebound, and the spring 6 being? expanded draws the shoe 5 immediatelrv into contact with the `ilriction band d, By having the shoe, the extent ot contact ot the strap 4t with the band d is increased, therelfijv increasing the triction orted onthe drum and inalrino; oreaterthe power et the device to resistthe shook and absorb it as the shoe trav-els up on the drum. lly havinr; the ears l0 19, the spring,f 6 is connected with the shoe 5 at a point spaced outward troni the strap ll. This increases the leverage exerted by the spring 6 on the shoe when the latter engages the drinn because the distance between `the center ot the drum and the pivot pin 11 is oreater than when the spring;` is connected directly to the strap as in our prior patent. Thus the device, bjr reason of the increased leveragej is enabled to taire care ot cars ot vai-'ions weights without an opp( till! Gli ` jecting prongs or tongues 18.

slips over these and is engaged by them, as

I forded for undnl ex aandinnf the s )ring 5 y l h i and weakening it. The construction described therefore allows the use ot a spring 6 having a-tension relatively slight as compared to the weights of the cars for which the device is designed.

`As to details of construction, the device is made as follows. There is a stamped steel base plate 13, which tits against the outside of the side member' 1, as shown in Fig. 2. The plate 13 is secured to traine member 1 by a bolt 14 having a iixed nut 15 between its ends and engaging the rear of the plate 13 in a socket 16 therein. This allows the plate 13 to be brought into tight Contact with the member 1. The portion or the bolt 14 at the rear side of the plate 13 extends through the iframe member 1 and receives clamp nut 17, as shown.

The bolt 14 also extends from the trent side of said plate 13 and through the drum 3. To hold the drum from displacement on said plate, the latter has outwardly pro- The drum 3 shown. To hold the plate 13 against turning about the bolt 14;, the plate has a lug- 19 ci;- tending inward under the traine 1, and a nut 15a on the bolt inside the drum 3 engages against the plate 13 and aids in holding it in place.

The member 7 is in the forni of a housing to enclose the drum and spring 6. This lits over the plate 13 and is secured .in place on the bolt 14; by a clamp nut 20 with a washer 20"L between, as shown. The rear side oi this housing 7 is open to receive the plate 13 and also to permit inspection of the spring 6, shoe 5 and other parts enclosed by the same. To Close the portion of the housing 7 below the plate 13, there is a cove-r 21..

This is detachably secured in place by k screws 22 to allow for removal, The lower end of the spring 6 is secured to the casing 7 by a bolt 23, as shown.

By loosening the nut 9.0, the member 7 may be adjusted about the bolt 111 to vary the extent of the loopage ot the strap elabout the drum 3 to take care of different weights of cars for which the device is de signed and also to compensate for wear between the parts. This adjustment is permitted by making the plate 13 circular and the adjacent edges of the housing 7 and cover 21 arcs of concentric circles, as clearly shown in Fig. 3. lhen clamped in place, the housing 7 is a fixed member carried by "the frame 1 tor the spring 6. The strap at extends outward from the housing? through a slot oropenmg 7a provided at one side thereof.

"While we have shownv and described herein in det-ail a shock absorber of our invention, it is ot course to be understood that the details of construction and arrangement connected with said l' member. and means connectii: l'ogeher the. i'ree ends oV said strap and springsaid ineanzlaiuori said strap toward and 'roux the drinn and increasing the piiirchase oi" the strap on said drinn when moved toward the s...ne by raus ing the strap to engage the drumv on opposite sides of its connection with said spring.

2. The combination with a` spring supported vehicle 'trame and axle. ol' a shock absorber, coinprisings; a nona'olaahh drinn and a fixed member both carried by said frame, a. strap ti-.ally loopid about said drum and haviiigr Yictional engagijeiueni therewith, one end oi! said. strap heine secured to said axle. a spring having one end secured to said fixed member` and means` carried by the strap at its free end and connecting together the tree ends ol lsaid strap and spring', said spring extending out'- ward from said drum and having its tree end connected with seid means a1: a point spaced outward from the strap to iucrcase the leverage of the sin-ing thereon.

The combination with a springsupported vehicle 'trame and axle, ot :i shock ab sorber. conun'ising` a non-rotatable drinn and a fixed member both carried by said Aframe, a strap partially looped about said drum and having iirictioual engmeineut therewith, one end oit said strap beinl secured to said axle. a shoe secured to the other end ol said strap to increase the purchai-:e nl' lhc same on said drum. and a spring haring one end connected with shoe and the other end with said tine-'gl member.

4. The combinatioi'i with al spring :iupported vehicle traine and axle, ot a shock absorber. comprising a nou-rotatable drum and a lined member both carried by said iframe, a strap partially looped about said drum and having trictional engagement therewith, one end oi the strap being secured to said axle, a shoe at the other end o i the strap and secured thereto. said shoe. having a concave part to fit the. drum. and a. spring having one end secured lo said fixed member and the other end to said shoe at a point spaced outward from said concave. part and intermediate the ends thereof.

5. The combination with a spring supported vehicle frame and iilc, of a shock ab* sorber, comprising a. uoirrotatal-ile drum an d seul llll'i l lll nii-naast a tired member both carried by said axle, a strap jiartially looped about said drinn and havinga trictional engagement therewith, one end ot said strap being secured to said arie, a shoe secured to the other end ot the strap and having a concave part to :lit said drinn, said shoe having outwardly projecting ears, and a spring secured at one end to said tired inernber and at the other end to said shoe between said, ears.

(i. rlho combination with a spring supported vehicle trarne and axle, ot a shoclr abso rber, comprising a. non-rotatable drurn and u tired ineinber both carried by said traine, a strap partially looped about said druin and ha ving trictional engagement therewith, one end oit the strap being secured to said axle, a shoe secured to the other end ot said strap, and having a concave part to fit said druin, and a. spring connected at one end With said lined ineinber and at the other end with said shoe, said fixed member being in the term o'lf a housing to enclose the other parts of the device. with the strap extending out of the saine on one side thereof.

'7. The combination with a spring supported vehicle t'arne and axle, of a shoclr absorber, comprising a noinrotatable drum and a tilted nieniber both carried by said traine, a strap partially looped about said drum and having trietional engagement therewith, one end ot the strap being secured to said, axle, a shoe secured to the other end ot said strap and having aeoncave part to :fit said druin, and a spring` connected at one end With said lined member andatl the other end Witl said shoe, said fixed member being connected With said 'traino in a manner per mitting the saine to be adjusted in an arc olf a circle transverse to said axle for varying the loopage ott the strap about said druin.

5:5. il. shock absorber, comprising a base pla-te, a non-rotatable drum secured thereto, a strap partially looped about said druni and having `trictninal engagement therewith, a housing secured to said plate over said druni and having the strap extended out ot the saine, said housing having a part extending outward troni said druin in the plane thereof, a coiled spring in said housing and having one end secured thereto at a point spaced from said drum, and a4 shoe in said housing` and connecting together the 'tree ends et said strap and spring, said shoe having a concave part to .tit said druin.

9. it shoot: absorber, comprising a base plate, a non-rotatable drinn secured thereto by a bolt, said base plate having parts er.- tending into said drum and engaging the saine, a strap partially looped about said drurn, a housing secured to said plate over said drum. by said bolt, said housing having part extending outward. troni said drinn in the plane thereof, a coiled spring in said housing; and having one end secured thereto at a point spaced 'trein said drum, and a shoe in said housing and connecting together the free ends ot said strap and spring, said shoe having a concave part to tit said drinn, and said strap extending over and being secured to the same.

l0. it. shoclr absorber, comprising a eircular baseplate, a non-rotatable drum secured thereto, a housing' open at its rear to receive said drum and having a curved upper edge 'to fit against said plate, a strap partially looped about said drum and having tric tional engagement therewith, said strap er.H tending out ot said drun'x` at one side there oft, a coiled spring in said housing and having one end connected therewith, a shoe in said housing and connecting together the adjacent tree ends ot said strap and spring, a cover closing the rear oit said housing below said plate and having a concave upper edge to enable the housing to be adjusted circumferentially about aid plate and drinn, and nieans connecting together said housing` and plate in a manner permitting such adjustnient.

ll. ,t shock absorber, comprising a ein cular baseplate, a non-rotatable drurn secured thereto by a bolt, said bolt extending through said druin and base-plate, a :tired nut on said bolt at the rear ot said plato and in a recess provided therefor in said baseplafte, a strap partially looped about said drum and having trictional engagement therewith, a housing secured to said plate over said drum with the strap extending out of the same, a coiled spring in said housing and having one end connected therewith, and a shoe in said housing and connecting together the adjacent tree ends ot said strap and spring.

lin testimony that We claim the 'foregoing as our invention, We adir our signatures, 'this 24th day ot dune, d.. D. 1922..

titi

litio 

